Add toStdString methods to CString and WTF::String

third_party/WebKit/Source/wtf/text/CString.h

Index: third_party/WebKit/Source/wtf/text/CString.h
diff --git a/third_party/WebKit/Source/wtf/text/CString.h b/third_party/WebKit/Source/wtf/text/CString.h
index 08e51027e774748d32f6336d76d19f32af7a41e7..e881f9ed4e9cbcfc8158d8360eeb5e6294f25120 100644
--- a/third_party/WebKit/Source/wtf/text/CString.h
+++ b/third_party/WebKit/Source/wtf/text/CString.h
@@ -29,6 +29,7 @@
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 #include "wtf/WTFExport.h"
+#include <string>
 
 namespace WTF {
 
@@ -64,6 +65,13 @@ public:
     CString(CStringBuffer* buffer) : m_buffer(buffer) { }
     static CString newUninitialized(size_t length, char*& characterBuffer);
 
+    // This method should be used ONLY to pass a WTFString to methods outside
+    // of blink which take a std::string as an argument.
+    std::string toStdString() const
+    {
+        return std::string(data(), length());
+    }
+
     const char* data() const
     {
         return m_buffer ? m_buffer->data() : 0;